Drink mixer



May 14, 1929.

DRINK MIXER Filed March 29, 1,928 2 Sheets-Sheet 1 33 .7. F

H. D. FLEGEL 1,713,119

V Patented Ma 14, 1929.

UNITED STATES PATENT OFFICE,

HARRISON D. FLEGEL, 0F RACINE, WISCONSIN.

- DRINK MIXER.

- Application riled March 29, 1928. Serial No. 265,725.

This invention relates to mixers, and is particularly directed to adrink mixer.

Objects of this invention are to provide a novel form of drink mixerwhich is so constructed that the maximum speed of mixin may be obtainedwithout any danger o throwin wardly y centrifugal action.

In mixers as heretofore constructed, the time re' uired for eifectingthe mixing has been de nitely limited by the speed at which the contentsof the container could be rotated, as-the contents would creep upwardlyover the top edge of the container due to the action of centrifugalforce.

This invention overcomes the defects heretofore encountered in drinkmixers and provides means whereby a ver much higher speed of mixing maybe obtalned, as a shield is provided and cooperates with the drink mixerin a. novel manner to seal the container, irrespective of its exactshape or size,

and to thus (prevent the throwin of the drink outwar ly during this rapimixing operation.

Further objects are to provide a drink mixer of the character describedabove in which yielding means are provided for holding the shieldyieldingly in contact with the container, thus accommodating containersof different sizes, and to further provide means for giving theshield-like mem er a quick rotative movement when the container islowered, and before it is removed, so as to free the shield-like memberof any adhering particles of the drink, and depositing these adheringparticles within the container.

Further objects of this invention are to provide a novelform, of drinkmixer in which an a itator havin a plurality of agitatin mem rs arrangeat spaced intervals and riven by a high speed electric motor may beemployed without danger of spilling any of the contents of the containerduring mixing, and to incorporate within this drink mixer a novel formof latchin switch which may be temporarily manual y held closed duringlowering of the container, so that the motor continues to operate andthus throws all adhering particles of-the drink both from the agitatorand from the shield before the container is removed. r

An embodiment of the invention is shown in the accompanying drawings inwhich:

Figure 1 is a side elevation of the drink the contents of the containeroutmixer with parts broken away and in section;

Figure 2 is a rear view partly in section;

Figure 3 is a side elevation corresponding to Figure 1, but showing theparts in a dif ferent position;

Figure 4 is a sectional view on the line 4-4 of Figure 3.

Referring to the drawings, it will be seen that the device comprises abase 1 from which rises a tubular or hollow standard 2. The upperportion of the standard supports a. high speed electric motor 3 which isprovided with a downwardly projecting shaft eipliipped with a pluralityof agitators 5. T e uppermost of these agitators may carry a collar 6provided with an upwardly projecting pin 7 as shown most clearly inFigure 3. I

This upwardly projecting pin cooperates with a downwardly projecting pin8 carried by a disc-like shield member 9. This disclike shield member isprovided with a bevelled downwardly projecting outer flange 10 adaptedto engage the inner walls of th container 11, and to thus completelyshield the container when the container is elevated. The shield memberis also provided with a sleeve 12 which slidably fits upon an elongatedbearing 13 carried by the motor and projecting downwardly.

Further, it is to be noted that a short, helical spring 14 is positionedwithin the sleeve and is adapted to contact with the lower end of thebearing 13 when the container is moved into elevated position, as shownin Figure 3. When this position is occupied by the parts, it will beseen that the disc-like shield plate or member seals the container andalso. that it is yieldingly urged downwardly as the spring 14 is thenunder compression, as shown in Figure 3. When the container is lowered,it is to be noted that the shield-like member drops down and that thepin 8 carried thereby contacts with the pin 7 rigidly associated withthe motor shaft 4 and preferably carried by the uppermost of theagitators. This causes a rapid rotation of the shield-like member andthus throws all adhering particles therefrom, such particles beingcaught by the container for the container then occupies the positionillustrated in Figure 1.

A support 15 is provided for the container and this support may consistof a bottom seat in a notch 21 of a mounted within the standard, whenthe conportion 16 and an. upper hook-like portion 17. The support isslidably carried upon the standard 2 by means of the pair of spacedrings 18 and 19. Une of the rings, for instance, the ring 19, isprovided with a projecting pin 20. The pin is adapted to tainer iselevated, as shown in Figure 3, and to thus retain the containertemporarily in elevated position. .A. spring 23 is employed for urgingthe lever towards latching position. The lever is unlatched by means ofa manually operable plunger 24 slidably projecting through the standard2 and pivoted to the lever, as shown in Figures 1 and 3.

The lever is preferably formed from insulating material and its lowerend carries a rivet 25 which is headed on-each end and which is adaptedto rock between the opposite faces of a pair of stationary springcontacts 26, these spring contacts being carried by an insulatin block27 mounted within the hollow ortlon of the standard or the hollowportion of the base as desired. This switch, of course, is connected inthe motor circuit although for the sake of clearness of illustration,the conductors have been omitted. Obviously, the conductors may leadfrom the device at any suitable point, for instance, through the opening28 provided in the base.

When the device is not in use, the parts are in the position shown inFigure 1. When it is desired to use the device, the container with thedrink therein is positioned as shown in Figure 1, and is shoved upwardlyinto the position shown in Figure 3. This causes a wedging action tooccur between the flange of the shield plate and the inner surface ofthe container, and also moves the shield plate upwardly and compressesthe spring 14, as described previously. The mixing can, therefore, takeplace with the utmost rapidity, for the shield plate prevents any of themixture fromescaping upwardly over the top of the container. By means ofthis construction, it is possible toemploy a higher powered motor andoperate the motor at a higher rate of speed than has heretofore beenfound possible with the ordinary types of drink mixers. Thus, it isapparent that the mixing may take place in a few seconds so that themachine is available for almost constant use with scarcely any intervalrequired for the'mixing of a single drink.

It is to be noted that the switch also has a releasin latching meansmanuall operable. When t e latching means is re eased, the switchremains closed as the spring arms or stationa contact arms 26 arerelatively wide and the movable contact does not pass therefrom, evenwhen the latch is released by means of the plunger 24. Thus, whenpivoted lever 22,

the container is lowered, the shield plate is given a quick rotationwhich throws adhering particles therefrom and thus thoroughly cleans theshield plate as well as the agitator.

It is apparent therefore, that the utmost yspeed may be secured by thistype of apparatus.

It is apparent that many modifications may be made in this inventionwithout dc parting from the spirit thereof. For in-' stance, variouscushioning devices may be employed so that the operator does not have tobe particularly careful in operating the container. For example, arubber cushion 28 may be employed, as shown in Figure 3, against whichthe pin 20 can strike when 7 the container is lowered.

Other modifications obviously may be from the spirit'of.

made without departin the invention and there 'ore it is to beunderstood that the description and drawings are to be interpreted asillustrative as the inven tion is to be determined as defined in theappended claims.

I claim:

1. A drink mixer including a rotatable shaft, a plurality of agitatorscarried thereby, a shield supported on the shaft, a container ada ted tobe moved into contact with said'shiel and receive the agitators, meansfor rotating the shaft when the shield is engaged with the container andmeans whereby to impart a rotative movement to the shield whendisengaged from the container and prior to the removal of the agitatorsfrom the container.

2. A drink mixer comprising an electric motor having a downwardlyprojecting elongated bearing, a shaft through said bearing and providewith an agitator, a disc-like shield member having a sleeve slidablymounted upon said elongated bearing, a s ring loosely surrounding aportion of sai shaft and adapted to contact with the bottom of saidelongated bearing when said shield is elevated, a container adapted toreceive said agitator and to be moved upwardly thereby compressing saidspring and causing said shield-like member to seal the container, andsupporting means for temporarily holding said container in an elevatedposition.

' rojecting' 3. A drink mixer comprising an electric is elevated, acontainer 1 adapted to receive said agitator and. to be moved upwardly,thereby compressing said sprmg and causing said shield-like member toseal the container, and'supporting means for temporarily holding saidcontainer in an elevated position, said supporting means controlling aswitch for sai electric motor, and manually o erable means for releasingsaid support an permitting the removal of said Container.

1 4. A drink mixer comprising an electric motor having a downwardlyprojecting elongated bearing, a shaft pro ecting through said bearingand provided with an agitator, a disc-like shield member having a sleeveslidably mounted upon said elongated bearing, a spring looselsurrounding a portion of said shield membe tact with the bottom of saidelongated bearing when said shield is elevated, a container adapted toreceive said agitator and to be moved upwardly thereby compressing saidspring and causing s aid shield-like member to seal the container, andsu rting means for temporarily holding sai container in an elevatedposition, said supporting means controlling a switch for'said electricmotor, and manually operable means for re-- leasing said support andpermitting the re-.

moval of said container, and means for ror and adapted to con-' tatingsaidshield when said container is in I its lower position.

5. A mixer comprising an upright standard having a base portion, aswitch carried within said standard and consistin of a pair of stationarblades and a movab e lever having a movab e contact, an electric motorcontrolled by said switch and carried by said standard an a 'tatordriven by said electric motor, a container adapted to be moved upwardlyinto position below said motor, said lever having latching means fortemporarily holding said container elevated, a manually operable plungerfor releasing said latching means and for holdin said switch,temporarilyclosed, a shieldike member mountedadjacent said motor and slidably andrevolu bly carried, and means for temporaril connecting said agitatorand said shie d-like member when said container is lowered, whereby saidshield-like member may be rotated while positioned within saidcontainer. In testimony that I claim the foregoing I have hereunto setmy hand at Racine, in

the county of Racine and State of Wisconsin. 1

HARRISON D. FLEGEL.

